BE728278A - - Google Patents
Info
- Publication number
- BE728278A BE728278A BE728278DA BE728278A BE 728278 A BE728278 A BE 728278A BE 728278D A BE728278D A BE 728278DA BE 728278 A BE728278 A BE 728278A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR144784 | 1968-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE728278A true BE728278A (US07122603-20061017-C00045.png) | 1969-08-12 |
Family
ID=8647833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE728278D BE728278A (US07122603-20061017-C00045.png) | 1968-03-21 | 1969-02-12 |
Country Status (5)
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3864959A (en) * | 1971-12-16 | 1975-02-11 | Pye Ltd | Thermal conductivity detector apparatus |
| JPS4953898A (US07122603-20061017-C00045.png) * | 1972-07-11 | 1974-05-25 | ||
| US3913392A (en) * | 1973-03-15 | 1975-10-21 | Toyoda Chuo Kenkyusho Kk | Physical quantity detecting circuit |
| US3848457A (en) * | 1973-05-14 | 1974-11-19 | Minnesota Mining & Mfg | Gaseous fluid monitoring apparatus |
| GB1592506A (en) * | 1976-12-15 | 1981-07-08 | Consolidation Coal Co | Electrical circuitry for detecting a combustible mixture of gas in a mine atmosphere |
| US4533846A (en) * | 1979-01-24 | 1985-08-06 | Xicor, Inc. | Integrated circuit high voltage clamping systems |
| JPS57189289A (en) * | 1981-05-15 | 1982-11-20 | Toubishi Kogyo Kk | Gas detection monitor |
| US4741198A (en) * | 1986-10-06 | 1988-05-03 | Beckman Industrial Corporation | Thermal conductivity detector assembly |
| GB9024107D0 (en) * | 1990-11-06 | 1990-12-19 | Measurement Tech Ltd | Power supply circuits |
| FR2940453B1 (fr) | 2008-12-19 | 2011-03-25 | Commissariat Energie Atomique | Sonde anemometrique a fils en "x" et son procede de realisation |
| FR2940434B1 (fr) * | 2008-12-19 | 2011-01-21 | Commissariat Energie Atomique | Dispositif de regulation d'un anemometre a fil |
| CN102667465B (zh) * | 2009-11-25 | 2014-09-17 | 西门子公司 | 用于对气体样本进行气体色谱分析法分析的方法和装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2906941A (en) * | 1958-06-10 | 1959-09-29 | Bell Telephone Labor Inc | Current supply apparatus |
| US3091957A (en) * | 1959-10-14 | 1963-06-04 | American Instr Co Inc | Thermal conductivity bridge circuit |
| US3207984A (en) * | 1960-11-18 | 1965-09-21 | Gen Dynamics Corp | Thermistor and diode bridge circuit for thermal compensation of a resistive load |
| US3278834A (en) * | 1962-04-23 | 1966-10-11 | Statham Instrument Inc | Wheatstone bridge compensation circuits and transducers employing the same |
| US3495159A (en) * | 1967-06-05 | 1970-02-10 | Honeywell Inc | Temperature compensation circuit for impedance bridges |
| US3535613A (en) * | 1968-03-11 | 1970-10-20 | Solid State Radiations Inc | Compensated solid state voltage regulator circuit including transistors and a zener diode |
| US3440515A (en) * | 1968-04-12 | 1969-04-22 | Union Carbide Corp | Shunt regulator battery charger |
-
1968
- 1968-03-21 FR FR144784A patent/FR1579535A/fr not_active Expired
-
1969
- 1969-02-12 BE BE728278D patent/BE728278A/xx not_active IP Right Cessation
- 1969-03-18 US US808251A patent/US3634757A/en not_active Expired - Lifetime
- 1969-03-19 GB GB04480/69A patent/GB1237625A/en not_active Expired
- 1969-03-21 DE DE19691914596 patent/DE1914596A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1914596A1 (de) | 1969-10-02 |
| US3634757A (en) | 1972-01-11 |
| GB1237625A (en) | 1971-06-30 |
| FR1579535A (US07122603-20061017-C00045.png) | 1969-08-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: CHARBONNAGES DE FRANCE Effective date: 19880228 |